PS Magazine - OCTOBER 1974
PS, The Preventative Maintenance Monthly
ISSUE 263
OCTOBER 1974
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CHAP!±
LA'SsT POp FRoM ´HE
heaC µ¶·D ¸¹Yº W» K¼½¾
¿Ur cÀÁÂ Ãl fÄÅ JumÆING.Ç
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you were.
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Leave battEry caps on-sCrewed in±
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W
thE CapS on Hoth the dead BatterIes aNd
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the live HattEries Being used for jumpiNg³
{!
Forget what was SaId in P´ MagazInE
I³´
³´
25µ, "´afety Tips For You¶· about takiNG
Í
µ¶
the ¸attEry capS o¹ for juºp »tartiNg.
´o¼e AUto¼o¸ilE ºan½faCturErs tell yo¾
to tAKe thE caps o¹ for ju¼pIng. You'll ¿Àd
tÁiS in owÂErÃÄ ¼anuals¶ and It's beEn
prInted iÅ Äeveral Civilian saÆÇty publiCaÈ
tions and in several milItary publiCationsÉ
Êut thE Ërmy's battery experts sÌe iÍ
tÎis waÏ:
Ðaps on the two ¼ost CoÑmon mIlitary
Batterie»Ò 2ÓÔ and 6TÔÕ are venÍed to
reliEvE any interNal pressÖreÕ suC× as
ÑIght come from Øgassing· durINg eit×er
jumpÙstartIng or ChargINg. FaCt isÚ tÎey
both aºount to pretty mÖC× t×e same
thing a» far as the dead ÛattÌry is CoNÜ
cErned.
Thereû A ÝÞway valve iNsIde the Capß
Êesides reliEviNg iNtErNal pressureà it keEp»
dirtÕ water aNd any otÎer CoNtamiNaNts out
of tÎe battery.
Î8
GAS PRESsURe
VALVE DROPs
BACK doWN
AFTeR PREssuRE
EsCAPEs ANd
KeePs DIRt
out
iNsiDe BAt±eRY
iÏÐÑÒÓÔÕ
_
³.
Yoá »hould keep Battery Caps CleaN so
t×e valve will workâ
UsE A s²IFF P³ECE OF W´Rµ TO
POKE D´RT OUt OF VENt HOLEs.
CAREFUL WHeN YoU POKE UP INTO
THOsE TWO BOTToM VENT HOLEs -
YoU MIGHT DAMAGE THAT soFT
RUBBER VAlVe ´NsIDe
Ö×Ø
µ2'-
Ë
dirtãclogged Cap won'ä CausÌ a ÛaätÌRå
Explosion¶ though. Most lIkelyÚ gas presæ
»ure insIde thE battery will forCe t×e dirÍ
out. The worst t×at CaN çap
p
EN is that t×e
Battery case èay CraCk from t×e iNternal
preésurE.
Êatêery explosioNs come from EsCaping
hydrogen gas beiNg Ignited bå spark or
ëame.
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